//#include <iostream>
//#include <new>
//
//struct chaff
//{
//	char dross[20];
//	int slag;
//};
//char buffer1[50];
//char buffer2[500];
//int main()
//{
//	chaff* p1, * p2;
//	int* p3, * p4;
//	//first,the regular forms of new
//	p1 = new chaff;		//place strcture in heap
//	p3 = new int[20];	// place int array heap
//	//now,the two forms of placement new
//	p2 = new (buffer1) chaff;		//place structure in buffer1
//	p4 = new (buffer2) int[20];		//place int array in buffer2
//	
//}